Although the impact of digital literacy (DL) and problematic smartphone use (PSU) on life satisfaction was verified in previous literature, little is known about how the impact of two given variables can be differentiated during the COVID-19 pandemic situation. Thus, the purpose of this study was to empirically analyze whether the influence of DL and PSU on life satisfaction has changed as a consequence of the COVID-19 pandemic. We applied a cross-sectional study design to analyze data obtained from a nationwide survey on smartphone overdependence conducted in 2019 and 2020 by the South Korean Ministry of Science and ICT and the National Information Society Agency. Large-scale data obtained from 41,883 individuals were analyzed using hierarchical regression analysis. The results show that the positive relationship between digital literacy and life satisfaction was further strengthened post-COVID-19 rather than pre-COVID-19. In addition, the results suggest that the negative relationship between PSU and life satisfaction is further strengthened during post-COVID-19 rather than pre-COVID-19. The findings indicate that the roles of digital literacy and PSU are more important after the COVID-19 pandemic.

The answer to the question, “Which factors determine the sustainable growth of small- and medium-sized enterprises (SMEs)?” is still fragmented. While previous studies have paid attention to a firm’s entrepreneurial orientation (EO) as a key driver of SME growth, it is often overlooked that contextual factors can be crucial in order for EO to be effective in yielding sustainable growth in SMEs. This paper focuses on the role of relative performance as a boundary condition in the relationship between EO and sustainable growth of SMEs. We predict that the effect of EO on SMEs’ sustainable growth would differ depending on performance feedback based on their past performance. Our empirical analysis based on panel analysis shows that SMEs strongly pursue sales growth immediately after they achieve lower levels of performance than historical aspiration. However, when their performance goes beyond the historical aspiration level, their growth patterns appear to show a different pattern depending on their level of EO. SMEs with greater EO are more likely to pursue firm growth when performance is above historical aspirations while those with lesser EO are not. Our findings suggest that relative performance is an important boundary condition in the relationship between EO and SMEs’ sustainable growth.

Under intensified downward economic pressures on the economy, technological innovation is playing a pivotal role in the development of Chinese enterprises. Employees’ psychological safety significantly influences their innovative behaviors, as a climate of psychological safety fosters greater willingness among staff to engage in voice behaviors. Guanxi with a team leader may decrease this effect. This study analyzed survey data from 263 employees of China’s private manufacturing enterprises to explore the moderating role of guanxi with a team leader in the relationship between psychological safety climate and voice behavior. Results showed that psychological safety climate was positively correlated with promotive and prohibitive voices, and employees with a higher psychological safety climate were more likely to develop voice behavior. Guanxi with team leaders negatively moderated the relationship between psychological safety climate and promotive and prohibitive voices, and the association between psychological safety climate and promotive and prohibitive voices was strong when guanxi with a team leader was weak. This study expands the scope of the application of guanxi, with team leaders as a moderating variable. It helps leaders focus on the psychological safety climate of employees, maintain harmonious and friendly interpersonal relationships with employees, enable employees to spontaneously contribute to the development of the organization, and enhance cohesion in the organization.